PREFIX person: <http://example.org/migrants/person/>

CONSTRUCT {
  ?s ?p ?o .
}
WHERE {
  {
    # Triples about Irene Abendroth (as subject)
    ?s ?p ?o .
    FILTER(?s = person:AbeIre-00)
  }
  UNION
  {
    # Triples from other tables referencing Irene Abendroth
    ?s ?p ?o .
    ?s ?ref person:AbeIre-00 .
  }
}
